<template>
  <div>
    <!-- 面包屑导航区域 -->
    <el-breadcrumb separator-class="el-icon-arrow-right">
      <el-breadcrumb-item :to="{ path: '/home' }">首页</el-breadcrumb-item>
      <el-breadcrumb-item>数据统计</el-breadcrumb-item>
      <el-breadcrumb-item>数据报表</el-breadcrumb-item>
    </el-breadcrumb>
    <!-- 卡片视图区域 -->
    <el-card>
      <div id="main" style="width: 1100px; height: 500px"></div>
    </el-card>
  </div>
</template>
<script>
import * as echarts from "echarts";
export default {
  data() {
    return {
        options: {
          title: {
            text: '用户来源'
          },
          tooltip: {
            trigger: 'axis',
            axisPointer: {
              type: 'cross',
              label: {
                backgroundColor: '#E9EEF3'
              }
            }
          },
          grid: {
            left: '3%',
            right: '4%',
            bottom: '3%',
            containLabel: true
          },
          xAxis: [
            {
              boundaryGap: false
            }
          ],
          yAxis: [
            {
              type: 'value'
            }
          ]
        }
    };
  },
  created() {},
  //此时，页面上的函数已经渲染完毕了
  async mounted() {
    // 基于准备好的dom，初始化echarts实例
    const myChart = echarts.init(document.getElementById("main"));

    const {data:res} = await this.$http.get('reports/type/1')
    if(res.meta.status !== 200){
        return this.$message.error('获取折线图数据失败！')
    }
     // 指定图表的配置项和数据
    const result = {...this.options,...res.data}
    // 使用刚指定的配置项和数据显示图表。
    myChart.setOption(result);
  },
  methods: {},
};
</script>
<style lang="less" scoped>
</style>